Can I run irfanview in MATLAB and batch/convert images?

Question

I have a set of images (> 500) and I want to convert them to .PGM format.
Is there some way to do it from a .m file?

Best regards!

UPDATE 06/09/2016

I found the following link, where IRFANVIEW commands to appear, but I have no experience running external commands from matlab. I used the following script:

dir_irfanview=('C:\Program Files (x86)\IrfanView\i_view32.exe');
cmd ='filelist=c:\v\list.txt /convert= c:\vc\*.pgm';
cmd2 = [cmd,dir_irfanview];
system(cmd2);

and I get the following error:

"filelist" is not recognized as an internal or external command, program or batch file.

Note that I used the "i_view32.exe filelist=c:\v\list.txt /convert= c:\vc*.pgm" command in DOS and no problems.

some guidance?

Answer 1

As Jørgen suggested, you can use system() to call irfanview to convert.

Alternatively, you can use imread and imwrite in a loop to do the job in a more "matlab"-ish way

fls = dir('/path/to/images/*');
for ii=1:numel(fls)
    if fls(ii).isdir
        continue; 
    end
    [pth fn ext] = fileparts(fls(ii).name);
    img = imread(fullfile('/path/to/images',fls(ii).name));
    imwrite(img, fullfile('/path/to/images',[fn, '.pgm']));
end